1938032133 has 4 divisors (see below), whose sum is σ = 2584042848. Its totient is φ = 1292021420.

The previous prime is 1938032111. The next prime is 1938032143. The reversal of 1938032133 is 3312308391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1938032133 - 2⁸ = 1938031877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1938032094 and 1938032103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938032143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323005353 + ... + 323005358.

It is an arithmetic number, because the mean of its divisors is an integer number (646010712).

Almost surely, 2^1938032133 is an apocalyptic number.

It is an amenable number.

1938032133 is a deficient number, since it is larger than the sum of its proper divisors (646010715).

1938032133 is an equidigital number, since it uses as much as digits as its factorization.

1938032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646010714.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1938032133 is about 44023.0863638614. The cubic root of 1938032133 is about 1246.7718588336.

The spelling of 1938032133 in words is "one billion, nine hundred thirty-eight million, thirty-two thousand, one hundred thirty-three".